ImageMagick Tricks: Web Image Effects from the Command Line and PHP : 9781904811862

Unleash the power of ImageMagick with this fast, friendly guide. It's packed with examples of photo manipulations, logo creation, animations, and complete web projects. With this book up your sleeve, you'll be creating spellbinding images from code in no time. ImageMagick is a free software suite to create, edit, and compose bitmap images using text-based commands. The commands can be issued from the command line, but more often will be included in web or desktop applications - carrying out complex image-manipulation tasks in response to the user's input. ImageMagick is a popular way for generating images on-the-fly in web pages, whether it's generating thumbnails from a large image, or creating complex combinations of images, text, and effects chosen by a visitor or the web site's creator. Sohail Salehi is an experienced computer graphics artist, working with 2D, 3D, and video graphics. The book shows his techniques in action. This is no laborious walk through of ImageMagick, with one dull example after another. The chapters consist of workshops, each one applying a set of ImageMagick commands to produce surprising and exciting results. As you read the book, you will learn the features of ImageMagick as well as getting lots of inspiration and ideas for how you can use it in your own projects. You'll be amazed by the creative results you can achieve using code.

About the Author
Sohail Salehi was born in Mashad, Iran, on March 18, 1975. He graduated in Software Engineering from Mashad University in 2000. In recent years, Sohail has contributed to over 20 books, mainly in programming and computer graphics. He has written frequent articles for "0 & 1 Magazine", an IT magazine from Ferdowsi University. You can find a complete list of his work at www.sohail2d.com. In the past he has worked as a Chairman in the IT department of various universities including Mashad, Ferdowsi, and the Industrial Management University. Currently he is working on the IT training standards for the Iranian "Work and Science Organisation" 2005-2006 period.

Image Processing Using Pulse-Coupled Neural Networks : 9783540242185

Humans have an outstanding ability to recognise, classify and discriminate
objects with extreme ease. For example, if a person was in a large classroom
and was asked to find the light switch it would not take more than a second or
two. Even if the light switch was located in a different place than the human
expected or it was shaped differently than the human expected it would
not be difficult to find the switch. Humans also don’t need to see hundreds of
exemplars in order to identify similar objects. For example, a human needs to
see only a few dogs and then he is able to recognise dogs even from species that
he has not seen before. This recognition ability also holds true for animals, to
a greater or lesser extent. A spider has no problem recognising a fly. Even a
baby spider can do that. At this level we are talking about a few hundred to a
thousand processing elements or neurons. Nevertheless the biological systems
seem to do their job very well.

Computers, on the other hand, have a very difficult time with these tasks.
Machines need a large amount of memory and significant speed to even come
close to the processing time of a human. Furthermore, the software for such
simple general tasks does not exist. There are special problems where the
machine can perform specific functions well, but the machines do not perform
general image processing and recognition tasks.

In the early days of electronic image processing, many thought that a
single algorithm could be found to perform recognition. The most popular of
these is Fourier processing. It, as well as many of its successors, has fallen
short of emulating human vision. It has become obvious that the human uses
many elegantly structured processes to achieve its image processing goals,
and we are beginning to understand only a few of these.

Image Processing: Principles and Applications : 9780471719984

Image processing—from basics to advanced applications

Learn how to master image processing and compression with this outstanding state-of-the-art reference. From fundamentals to sophisticated applications, Image Processing: Principles and Applications covers multiple topics and provides a fresh perspective on future directions and innovations in the field, including:

• Image transformation techniques, including wavelet transformation and developments


• Image enhancement and restoration, including noise modeling and filtering


• Segmentation schemes, and classification and recognition of objects


• Texture and shape analysis techniques


• Fuzzy set theoretical approaches in image processing, neural networks, etc.


• Content-based image retrieval and image mining


• Biomedical image analysis and interpretation, including biometric algorithms such as face recognition and signature verification


• Remotely sensed images and their applications


• Principles and applications of dynamic scene analysis and moving object detection and tracking


• Fundamentals of image compression, including the JPEG standard and the new JPEG2000 standard

Additional features include problems and solutions with each chapter to help you apply the theory and techniques, as well as bibliographies for researching specialized topics. With its extensive use of examples and illustrative figures, this is a superior title for students and practitioners in computer science, wireless and multimedia communications, and engineering.

About the Author
TINKU ACHARYA, PhD, is Chief Technology Officer, Avisere, Inc., Tucson, Arizona. Dr. Acharya is also Adjunct Professor, Department of Electrical Engineering, Arizona State University. He is the inventor of ninety-seven awarded U.S. and European patents and coauthor of Data Mining: Multimedia, Soft Computing, and Bioinformatics (Wiley), Information Technology, and JPEG2000 Standard for Image Compression: Concepts, Algorithms, and VLSI Architectures (Wiley).

AJOY K. RAY, PhD, is Senior Corporate Research Scientist, Avisere, Inc., Arizona, and a Professor of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur. A distinguished teacher with twenty-five years of experience, Professor Ray has coauthored two other books, Advanced Microprocessors and Peripherals and Information Technology: Principles and Applications. In addition, he has published extensively in international journals.